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Cisco 642-427 Exam Syllabus Topics:

Cisco Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) Sample Questions:

1. Five users from a branch office and two users from headquarters frequently engage in conference calls with each other. Their clients call in from the PSTN. WAN bandwidth is very limited.
Which solution reduces the WAN utilization of the five users from a branch office and two users from headquarters in conference calls?

A) Have the users from the branch office initiate the conference call. Configure the branch office phones in the MRGL to the branch office gateway resources.
B) Utilize the hardware conference resources in headquarters. Configure all phones in the MRGL to the headquarters resources.
C) Configure the hardware DSP resources in the branch and headquarters ISR gateways to work together simultaneously in the same conference call.
D) Have the users from the branch office initiate the conference call. MRGL configurations are not required.

2. Which of the following describes SIP Early Offer?

A) Early Offer always uses session indicator 183
B) In SIP Early Offer mode, the SDP media capabilities are sent in the 200 OK messages of the calling device.
C) In SIP Early Offer mode, the SDP media capabilities are sent in the INVITE message calling device.
D) In SIP Early Offer mode, the INVITE and the 200 OK messages use non-SDP message format to indicate SIP Early Offer

3. Refer to the exhibit. A user at BR1 is on a call to the PSTN through the PRI interface on the local
H.323 gateway. The IP WAN has just failed and the call has been dropped.

What is causing the call to be dropped?

A) The no h225 timeout keepalive command has not been configured on the gateway.
B) The IP phone hasn't registered with SRST.
C) SRST hasn't been configured on the BR1 gateway.
D) The H.323 gateway has lost the D channel on the PRI.

4. Which method can be used to correct database replication issues in a cluster running Cisco Unified CallManager 5.0?
Select the best response.

A) Run the Cisco Unified CallManager BARS utility to restore the database to the subscriber.
B) Use the SQL Server Enterprise Manager application to recreate the database subscription.
C) Execute the dblhelper utility on the publisher.
D) Enter the utils dbreplication repair command at the command-line prompt.
E) Use the Informix database utility to recreate the database subscription.

5. Users in a branch office cannot hear MOH when they are on hold. However, users in the headquarters office where Cisco Unified Communications server is installed have MOH enabled and can hear MOH when on hold.
Which action solves this problem?

A) Enable the MOH file in the headquarters router flash.
B) Enable the MOH file in the branch router flash.
C) Remove multicast routing in the headquarters router.
D) Remove multicast routing in the branch router.

Solutions: